While your suggestions are good, sleep apnea is a serious condition that likely won,t be addressed by any of them. He needs a full evaluation by a qualified sleep specialist.
Oh nonsense.
Qualified sleep specialists are deceiving folks with expensive unnecessary tests and equipment for $1000s of dollars. Coupled with mandatory regulation, industry is scamming gullible folks.
Medical science wants pill poppers and hook people up to ther expensive machines when natural, normal solutions are out there.
Exercise, food, and mental health are a good start to avoid dependency on somebody’s patented machine and pills.